MESON Chess Problem Database

Problem Display
PID: 233002 (8/8/8/K7/2N5/5Q2/b1p5/2kB4 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 2004

8/8/8/K7/2N5/5Q2/b1p5/2kB4

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qa3+?
      • 1...Kb1
        • 2.Qb2#
      • 1...Kxd1!
    • 1.Qe3+?
      • 1...Kxd1
        • 2.Sb2#
        • 2.Qd2#
      • 1...Kb1!
    • 1.Qf4+?
      • 1...Kxd1
        • 2.Qd2#
        • 2.Qf1#
      • 1...Kb1!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qxc2#
      • 1...Kb1
        • 2.Qb2#
      • 1...Kxd1
        • 2.Qd2#
      • 1...Bb1
        • 2.Qd2#
      • 1...Bb3
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XB(A)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(B);P_PINP(c)
    • Threat
      • QAR1(B),XP(c)
    • Vars
      • K(a);N_SPINP(c),P-FLIGHT::QAR1(B)
      • K(a);N_SPINP(c),P-FLIGHT,XB(A)::QAR1(B)
      • B(b);SBLOCK::QAB1(B)
      • B(b);N_GUARD::QAR2(B)
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